Secret Life (as Severus Snape's Daughter)...
Lily-Anne Snape is the daughter of Severus Snape and Lily Potter-Evans, and therefore Harry Potter's half sister. She is a Slytherin like her father, and is by now in her fifth year at Hogwarts. Her best friend is Draco Malfoy and maybe she is even secretly in love with him.
But... no one knows that her name is Snape, and no one knows that Harry is her brother. And no one knows what would happen in that summer on Diagon Alley, in a very particular red shop owned by red-haired twins.